Search for laser-induced formation of antihydrogen atoms

被引：27

作者：

Amoretti, M. ^{[1
]}

Amsler, C.

Bonomi, G.

Bowe, P. D.

Canali, C.

Carraro, C.

Cesar, C. L.

Charlton, M.

Ejsing, A. M.

Fontana, A.

Fujiwara, M. C.

Funakoshi, R.

Genova, P.

Hangst, J. S.

Hayano, R. S.

Jorgensen, L. V.

Kellerbauer, A.

Lagomarsino, V.

Rizzini, E. Lodi

Macri, M.

Madsen, N.

Manuzio, G.

Mitchard, D.

Montagna, P.

Posada, L. G. C.

Pruys, H.

Regenfus, C.

Rotondi, A.

Telle, H. H.

Testera, G.

Van der Werf, D. P.

Variola, A.

Venturelli, L.

Yamazaki, Y.

Zurlo, N.

机构：

[1] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy

[2] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland

[3] Univ Brescia, Dipartimento Ingn Meccan, I-25123 Brescia, Italy

[4] Univ Pavia, Ist Nazl Fis Nucl, I-27100 Pavia, Italy

[5] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark

[6] Ist Nazl Fis Nucl, Dipartimento Fis, I-16146 Genoa, Italy

[7] Univ Fed Rio de Janeiro, Inst Fis, BR-21945970 Rio De Janeiro, Brazil

[8] Univ Wales Swansea, Dept Phys, Swansea SA2 8PP, W Glam, Wales

[9] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

[10] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[11] CERN, Dept Phys, CH-1211 Geneva 23, Switzerland

[12] Univ Brescia, Dipartimenti Chim & Fis Ingn & Mat, I-25123 Brescia, Italy

[13] Grp Coll Brescia, Ist Nazl Fis Nucl, I-25123 Brescia, Italy

[14] RIKEN, Atom Phys Lab, Wako, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.97.213401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Antihydrogen can be synthesized by mixing antiprotons and positrons in a Penning trap environment. Here an experiment to stimulate the formation of antihydrogen in the n=11 quantum state by the introduction of light from a CO2 continuous wave laser is described. An overall upper limit of 0.8% with 90% C.L. on the laser-induced enhancement of the recombination has been found. This result strongly suggests that radiative recombination contributes negligibly to the antihydrogen formed in the experimental conditions used by the ATHENA Collaboration.

引用

页数：4

共 21 条

[1] Production and detection of cold antihydrogen atoms [J].

Amoretti, M ;

Amsler, C ;

Bonomi, G ;

Bouchta, A ;

Bowe, P ;

Carraro, C ;

Cesar, CL ;

Charlton, M ;

Collier, MJT ;

Doser, M ;

Filippini, V ;

Fine, KS ;

Fontana, A ;

Fujiwara, MC ;

Funakoshi, R ;

Genova, P ;

Hangst, JS ;

Hayano, RS ;

Holzscheiter, MH ;

Jorgensen, LV ;

Lagomarsino, V ;

Landua, R ;

Lindelöf, D ;

Rizzini, EL ;

Macri, M ;

Madsen, N ;

Manuzio, G ;

Marchesotti, M ;

Montagna, P ;

Pruys, H ;

Regenfus, C ;

Riedler, P ;

Rochet, J ;

Rotondi, A ;

Rouleau, G ;

Testera, G ;

Variola, A ;

Watson, TL ;

van der Werf, DP .

NATURE, 2002, 419 (6906) :456-459

[2] Dynamics of antiproton cooling in a positron plasma during antihydrogen formation [J].

Amoretti, M ;

Amsler, C ;

Bonomi, G ;

Bouchta, A ;

Bowe, PD ;

Carraro, C ;

Cesar, CL ;

Charlton, M ;

Doser, M ;

Filippini, V ;

Fontana, A ;

Fujiwara, MC ;

Funakoshi, R ;

Genova, P ;

Hangst, JS ;

Hayano, RS ;

Jorgensen, LV ;

Kellerbauer, A ;

Lagomarsino, V ;

Landua, R ;

Lindelof, D ;

Rizzini, EL ;

Macrí, M ;

Madsen, N ;

Manuzio, G ;

Montagna, P ;

Pruys, H ;

Regenfus, C ;

Rotondi, A ;

Testera, G ;

Variola, A ;

Venturelli, L ;

van der Werf, DP ;

Yamazaki, Y .

PHYSICS LETTERS B, 2004, 590 (3-4) :133-142

[3] Antihydrogen production temperature dependence [J].

Amoretti, M ;

Amsler, C ;

Bazzano, G ;

Bonomi, G ;

Bouchta, A ;

Bowe, PD ;

Canali, C ;

Carraro, C ;

Cesar, CL ;

Charlton, M ;

Doser, M ;

Fontana, A ;

Fujiwara, MC ;

Funakoshi, R ;

Genova, P ;

Hangst, JS ;

Hayano, RS ;

Johnson, I ;

Jorgensen, LV ;

Kellerbauer, A ;

Lagomarsino, V ;

Landua, R ;

Rizzini, EL ;

Macrí, M ;

Madsen, N ;

Manuzio, G ;

Marchesotti, M ;

Mitchard, D ;

Ottone, F ;

Pruys, H ;

Regenfus, C ;

Riedler, P ;

Rotondi, A ;

Testera, G ;

Variola, A ;

Venturelli, L ;

Yamazaki, Y ;

van der Werf, DP ;

Zurlo, N .

PHYSICS LETTERS B, 2004, 583 (1-2) :59-67

[4] The ATHENA antihydrogen apparatus [J].

Amoretti, M ;

Amsler, C ;

Bonomi, G ;

Bouchta, A ;

Bowe, PD ;

Carraro, C ;

Charlton, M ;

Collier, MJT ;

Doser, M ;

Filippini, V ;

Fine, KS ;

Fontana, A ;

Fujiwara, MC ;

Funakoshi, R ;

Genova, P ;

Glauser, A ;

Grögler, D ;

Hangst, J ;

Hayano, RS ;

Higaki, H ;

Holzscheiter, MH ;

Joffrain, W ;

Jorgensen, LV ;

Lagomarsino, V ;

Landua, R ;

Cesar, CL ;

Lindelöf, D ;

Lodi-Rizzini, E ;

Macri, M ;

Madsen, N ;

Manuzio, D ;

Manuzio, G ;

Marchesotti, M ;

Montagna, P ;

Pruys, H ;

Regenfus, C ;

Riedler, P ;

Rochet, J ;

Rotondi, A ;

Rouleau, G ;

Testera, G ;

van der Werf, DP ;

Variola, A ;

Watson, TL ;

Yamazaki, T ;

Yamazaki, Y .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004, 518 (03) :679-711

[5] Positron plasma diagnostics and temperature control for antihydrogen production -: art. no. 055001 [J].

Amoretti, M ;

Amsler, C ;

Bonomi, G ;

Bouchta, A ;

Bowe, PD ;

Carraro, C ;

Cesar, CL ;

Charlton, M ;

Doser, M ;

Filippini, V ;

Fontana, A ;

Fujiwara, MC ;

Funakoshi, R ;

Genova, P ;

Hangst, JS ;

Hayano, RS ;

Jorgensen, LV ;

Lagomarsino, V ;

Landua, R ;

Lindelöf, D ;

Rizzini, EL ;

Macrí, M ;

Madsen, N ;

Manuzio, G ;

Montagna, P ;

Pruys, H ;

Regenfus, C ;

Rotondi, A ;

Testera, G ;

Variola, A ;

van der Werf, DP .

PHYSICAL REVIEW LETTERS, 2003, 91 (05)

[6] High rate production of antihydrogen [J].

Amoretti, M ;

Amsler, C ;

Bazzano, G ;

Bonomi, G ;

Bouchta, A ;

Bowe, P ;

Carraro, C ;

Cesar, CL ;

Charlton, M ;

Doser, M ;

Filippini, V ;

Fontana, A ;

Fujiwara, MC ;

Funakoshi, R ;

Genova, P ;

Hangst, JS ;

Hayano, RS ;

Jorgensen, LV ;

Lagomarsino, V ;

Landua, R ;

Lindelöf, D ;

Rizzini, EL ;

Macri, M ;

Madsen, N ;

Manuzio, G ;

Marchesotti, M ;

Montagna, P ;

Pruys, H ;

Regenfus, C ;

Riedler, P ;

Rotondi, A ;

Rouleau, G ;

Testera, G ;

Variola, A ;

van der Werf, DP .

PHYSICS LETTERS B, 2004, 578 (1-2) :23-32

[7] Complete nondestructive diagnostic of nonneutral plasmas based on the detection of electrostatic modes [J].

Amoretti, M ;

Bonomi, G ;

Bouchta, A ;

Bowe, PD ;

Carraro, C ;

Cesar, CL ;

Charlton, M ;

Doser, M ;

Fontana, A ;

Fujiwara, MC ;

Funakoshi, R ;

Genova, P ;

Hangst, JS ;

Hayano, RS ;

Jorgensen, LV ;

Lagomarsino, V ;

Landua, R ;

Rizzini, EL ;

Macrí, M ;

Madsen, N ;

Manuzio, G ;

Testera, G ;

Variola, A ;

van der Werf, DP .

PHYSICS OF PLASMAS, 2003, 10 (08) :3056-3064

[8] Formation of antihydrogen atoms in an ultra-cold positron-antiproton plasma [J].

Fedichev, PO .

PHYSICS LETTERS A, 1997, 226 (05) :289-292

[9] Three-dimensional annihilation imaging of trapped antiprotons [J].

Fujiwara, MC ;

Amoretti, M ;

Bonomi, G ;

Bouchta, A ;

Bowe, PD ;

Carraro, C ;

Cesar, CL ;

Charlton, M ;

Doser, M ;

Filippini, V ;

Fontana, A ;

Funakoshi, R ;

Genova, P ;

Hangst, JS ;

Hayano, RS ;

Jorgensen, LV ;

Lagomarsino, V ;

Landua, R ;

Lodi-Rizzini, E ;

Marchesotti, M ;

Macri, M ;

Madsen, N ;

Manuzio, G ;

Montagna, P ;

Riedler, P ;

Rotondi, A ;

Rouleau, G ;

Testera, G ;

Variola, A ;

van der Werf, DP ;

Yamazaki, Y .

PHYSICAL REVIEW LETTERS, 2004, 92 (06)

[10] Background-free observation of cold antihydrogen with field-ionization analysis of its states -: art. no. 213401 [J].

Gabrielse, G ;

Bowden, NS ;

Oxley, P ;

Speck, A ;

Storry, CH ;

Tan, JN ;

Wessels, M ;

Grzonka, D ;

Oelert, W ;

Schepers, G ;

Sefzick, T ;

Walz, J ;

Pittner, H ;

Hänsch, TW ;

Hessels, EA .

PHYSICAL REVIEW LETTERS, 2002, 89 (21)

← 1 2 3 →